patch up vs repair

patch up is not a noun while repair is a noun.

Word	Noun	Adjective	Verb	Adverb
patch up	No	No	Yes	No
repair	Yes	No	Yes	No

As verbs, repair is a hypernym of patch up; that is, repair is a word with a broader meaning than patch up:

patch up: mend by putting a patch on
repair: restore by replacing a part or putting together what is torn or broken

Other hypernyms of patch up include bushel, doctor, fix, furbish up, mend, restore, touch on.

patch up (noun)	repair (noun)
	the act of putting something in working order again
	a frequently visited place
	a formal way of referring to the condition of something

patch up (verb)	repair (verb)
mend by putting a patch on	give new life or energy to
come to terms	restore by replacing a part or putting together what is torn or broken
	set straight or right
	move, travel, or proceed toward some place
	make amends for; pay compensation for